(for PR #24267)

2025-11-10 11:02.17: New job: build odnnr.2.0.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/24267/head (41de505ec8ff3637ab3cb06a41ccbc29683f566c)
                              on centos-10-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/24267/head" && git reset --hard 41de505e
git fetch origin master
git merge --no-edit 21f97b2e6d7c617fc0a79cc8e59b2e10690960e1
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn odnnr.2.0.0 2.0.0
RUN opam reinstall odnnr.2.0.0; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"centos-10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'odnnr.2.0.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2025-11-10 11:02.17: Using cache hint "ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee-odnnr.2.0.0-41de505ec8ff3637ab3cb06a41ccbc29683f566c"
2025-11-10 11:02.17: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "opam option solver=builtin-0install && opam config report"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMPRECISETRACKING 1)
 (env CI true)
 (env OPAM_REPO_CI true)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn odnnr.2.0.0 2.0.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall odnnr.2.0.0;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"centos-10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'odnnr.2.0.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-10 11:02.17: Waiting for resource in pool OCluster
2025-11-10 12:43.59: Waiting for worker…
2025-11-10 12:52.10: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
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Updating files: 100% (18702/18702), done.
HEAD is now at 21f97b2e6d Merge pull request #28836 from dbuenzli/b0-publish-bytesrw.0.3.0
Merge made by the 'ort' strategy.
 packages/odnnr/odnnr.2.0.0/opam                   | 4 +---
 packages/oplsr/oplsr.8.0.1/opam                   | 3 +--
 packages/orrandomForest/orrandomForest.1.0.0/opam | 5 +----
 packages/orrandomForest/orrandomForest.2.0.1/opam | 7 +------
 packages/orrandomForest/orrandomForest.3.0.0/opam | 7 +------
 packages/orsvm_e1071/orsvm_e1071.2.0.0/opam       | 3 ---
 packages/orsvm_e1071/orsvm_e1071.3.0.0/opam       | 5 +----
 packages/orsvm_e1071/orsvm_e1071.3.0.1/opam       | 2 +-
 packages/orsvm_e1071/orsvm_e1071.3.0.2/opam       | 2 +-
 packages/orsvm_e1071/orsvm_e1071.4.0.0/opam       | 2 +-
 packages/orxgboost/orxgboost.1.0.1/opam           | 5 +----
 packages/orxgboost/orxgboost.1.1.0/opam           | 5 +----
 packages/orxgboost/orxgboost.1.2.0/opam           | 5 +----
 13 files changed, 12 insertions(+), 43 deletions(-)

(from ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee)
Unable to find image 'ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee' locally
docker.io/ocaml/opam@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee: Pulling from ocaml/opam
b85efb1ffb0a: Pulling fs layer
b85efb1ffb0a: Verifying Checksum
b85efb1ffb0a: Download complete
b85efb1ffb0a: Pull complete
Digest: sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee
Status: Downloaded newer image for ocaml/opam@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee
2025-11-10 12:52.14 ---> using "678d307669327213b6763ac40b1491a2e7a9cc6da26aa808af111b437f4523f5" from cache

/: (user (uid 1000) (gid 1000))

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-10 12:52.14 ---> using "8bb645a837c0d3f0550ae1ace6d146fe6111dfb1b58164879ab7b107f0c8c6e5" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
Configuring from /home/opam/.opamrc-sandbox, then /home/opam/.opamrc, and finally from built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.

This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2025-11-10 12:52.14 ---> using "ed80958a0904ff4b783a1724d1854b9c783c42b9df12bf5ce77cf7bdbfcf3e83" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.5.0~alpha1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=centos os-version=10
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2025-11-10 12:52.14 ---> using "83ce7712ec013bdbb6c67926ff90ed73113d64066faaf67e126818b0f5f688dc" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (env CI true)

/home/opam: (env OPAM_REPO_CI true)

/home/opam: (run (shell "rm -rf opam-repository/"))
2025-11-10 12:52.14 ---> using "18e737f6f42a4acfe29bc8b92802b570f517f99552e813a8e7eab21c1e3da971" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-10 12:52.39 ---> saved as "c4749481c0cf101da7a9b8741feb6f76657878b5d1033acbf36d22d16aeff026"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-10 12:53.11 ---> saved as "00b8aaa796acf4c336244a8c60442f7c8f68c77a6aab2e79b331a80890675345"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                       129 kB/s |  15 kB     00:00    
- CentOS Stream 10 - AppStream                    147 kB/s |  15 kB     00:00    
- CentOS Stream 10 - CRB                          130 kB/s |  14 kB     00:00    
- CentOS Stream 10 - Extras packages              149 kB/s |  16 kB     00:00    
- Metadata cache created.
2025-11-10 12:53.13 ---> saved as "4179f6664dedda75b09b1d677ca4a918622e66e0b2c91681c26ca6ebb7af99f1"

/home/opam: (run (shell "opam pin add -k version -yn odnnr.2.0.0 2.0.0"))
odnnr is now pinned to version 2.0.0
2025-11-10 12:53.15 ---> saved as "0b34cfaa89a0671016efe88da7440724647ce84a95eb6e59a0b8a50367991732"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall odnnr.2.0.0;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"centos-10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'odnnr.2.0.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
odnnr.2.0.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 14 packages
  - install batteries     3.10.0         [required by odnnr]
  - install camlp-streams 5.0.1          [required by batteries]
  - install conf-autoconf 0.2            [required by cpu]
  - install conf-gnuplot  0.1            [required by odnnr]
  - install conf-r        1.0.0          [required by odnnr]
  - install cpm           12.2.0         [required by odnnr]
  - install cpu           2.0.0          [required by parany]
  - install dolog         4.0.0          [required by odnnr]
  - install dune          3.20.2         [required by odnnr]
  - install minicli       5.0.2          [required by odnnr]
  - install num           1.6            [required by batteries]
  - install ocamlfind     1.9.8          [required by batteries]
  - install odnnr         2.0.0 (pinned)
  - install parany        12.2.2         [required by odnnr]

The following system packages will first need to be installed:
    epel-release gnuplot R

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>

opam believes some required external dependencies are missing. opam can:
> 1. Run yum to install them (may need root/sudo access)
  2. Display the recommended yum command and wait while you run it manually (e.g. in another terminal)
  3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
  4. Abort the installation

[1/2/3/4] 1

+ /usr/bin/sudo "yum" "install" "-y" "epel-release"
- Last metadata expiration check: 0:00:09 ago on Mon Nov 10 12:53:13 2025.
- Dependencies resolved.
- ================================================================================
-  Package               Arch        Version             Repository          Size
- ================================================================================
- Installing:
-  epel-release          noarch      10-5.el10s          extras-common       18 k
- Installing weak dependencies:
-  dnf-plugins-core      noarch      4.7.0-9.el10        baseos              44 k
- 
- Transaction Summary
- ================================================================================
- Install  2 Packages
- 
- Total download size: 62 k
- Installed size: 47 k
- Downloading Packages:
- (1/2): epel-release-10-5.el10s.noarch.rpm       852 kB/s |  18 kB     00:00    
- (2/2): dnf-plugins-core-4.7.0-9.el10.noarch.rpm 1.7 MB/s |  44 kB     00:00    
- --------------------------------------------------------------------------------
- Total                                           256 kB/s |  62 kB     00:00     
- CentOS Stream 10 - Extras packages              2.1 MB/s | 2.1 kB     00:00    
- Importing GPG key 0x1D997668:
-  Userid     : "CentOS Extras SIG (https://wiki.centos.org/SpecialInterestGroup) <security@centos.org>"
-  Fingerprint: 363F C097 2F64 B699 AED3 968E 1FF6 A217 1D99 7668
-  From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Extras-SHA512
- warning: Certificate 1FF6A2171D997668:
-   Policy rejects subkey 8B5C8111FCA5D0FF: Policy rejected non-revocation signature (PrimaryKeyBinding) requiring second pre-image resistance
- Key imported successfully
- Running transaction check
- Transaction check succeeded.
- Running transaction test
- Transaction test succeeded.
- Running transaction
-   Preparing        :                                                        1/1 
-   Installing       : dnf-plugins-core-4.7.0-9.el10.noarch                   1/2 
-   Installing       : epel-release-10-5.el10s.noarch                         2/2 
-   Running scriptlet: epel-release-10-5.el10s.noarch                         2/2 
- Many EPEL packages require the CodeReady Builder (CRB) repository.
- It is recommended that you run /usr/bin/crb enable to enable the CRB repository.
- 
- 
- Installed:
-   dnf-plugins-core-4.7.0-9.el10.noarch      epel-release-10-5.el10s.noarch     
- 
- Complete!
+ /usr/bin/sudo "yum" "install" "-y" "R" "gnuplot"
- Extra Packages for Enterprise Linux 10 - x86_64 8.4 MB/s | 5.7 MB     00:00    
- Last metadata expiration check: 0:00:04 ago on Mon Nov 10 12:53:25 2025.
- No match for argument: gnuplot
- Error: Unable to find a match: gnuplot
[ERROR] System package install failed with exit code 1 at command:
            sudo yum install -y R gnuplot
[ERROR] These packages are still missing: epel-release gnuplot R

[NOTE] You can retry with '--assume-depexts' to skip this check, or run 'opam option depext=false' to permanently disable handling of system packages.

"/usr/bin/env" "bash" "-c" "opam reinstall odnnr.2.0.0;
        res=$?;
        test "$res" != 31 && exit "$res";
        export OPAMCLI=2.0;
        build_dir=$(opam var prefix)/.opam-switch/build;
        failed=$(ls "$build_dir");
        partial_fails="";
        for pkg in $failed; do
          if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"centos-10\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'odnnr.2.0.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 10
2025-11-10 12:54.40: Job failed: Failed: Build failed
2025-11-10 12:54.40: Log analysis:
2025-11-10 12:54.40: >>> 
[ERROR] System package install failed with exit code 1 at command:
 (score = 20)
2025-11-10 12:54.40: >>> 
[ERROR] These packages are still missing: epel-release gnuplot R
 (score = 20)
2025-11-10 12:54.40: System package install failed with exit code 1 at command: